ЁЯУв Too many exams? DonтАЩt know which one suits you best? Book Your Free Expert ЁЯСЙ call Now!
  • google app store apple app store
    • тЬЦ

      Question

      If (3x - y) = 3, xy = (2/3), then find the value of

      {x3┬а- (y3/27)}
      A 5/3 Correct Answer Incorrect Answer
      B 7/3 Correct Answer Incorrect Answer
      C 5/7 Correct Answer Incorrect Answer
      D 7/3 Correct Answer Incorrect Answer

      Solution

      Given, 3x - y = 3 ........ (I) On dividing equation (I) by '3', we have; {x - (y/3)} = 1 On cubing both sides, we have; x3┬а- (y3/27) - 3 X x X (y/3) X {x - (y/3)} = 1 Or, x3┬а- (y3/27) = 1 + xy X 1 Or, x3┬а- (y3/27) = 1 + (2/3) Or, x3┬а- (y3/27) = (5/3)

      Practice Next
      More Algebra Questions
      ask-question